<!DOCTYPE html>
<html lang="en">

    <head>
        <meta charset="UTF-8">
        <meta http-equiv="X-UA-Compatible" content="IE=edge">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <title>20-透明度与手势</title>
    </head>
    <style>
    #div1 {
        width: 100px;
        height: 100px;
        background: red;
        opacity: 0.5;
    }

    #div2 {
        width: 100px;
        height: 100px;
        background: rgba(255, 0, 0, 0.5);
        cursor: url(./images/se.cur),auto;
    }
</style>
    <body>
        <div id="div1">这是一个块</div>
        <p>这是一个段落</p>
        <div id="div2">这又是一个块</div>
    </body>

</html>